Input/Turbine Speed Sensor Circuit Intermittent
Qu'est-ce que cela signifie ?
Code P0718 indicates a problem with the transmission input/turbine speed sensor.
Avertissement : Ce code de diagnostic fait partie du système OBD2 standard et peut s'appliquer aux modèles Gmc Yukon fabriqués de 1996 à 2026. Cependant, veuillez noter que la présence de ce code dépend de la configuration exacte du moteur, des options et de l'année de production.
Causes courantes
Capteur de vitesse d'entrée/turbine défectueux
Liquide de transmission bas, sale ou brûlé
Faisceau de câblage endommagé ou cassé
Symptômes à surveiller
- Le voyant moteur est allumé
- La transmission glisse entre les vitesses
- Changement de vitesse brutal
- La transmission reste bloquée sur un rapport
Comment Diagnostiquer
Solutions Courantes
**Repair or Replace Damaged Wiring/Connectors:** If the diagnostic steps identify chafed wires, corroded terminals, or a faulty connector, the primary fix is to repair the damaged section of the wiring harness or replace the connector. Use proper soldering techniques with heat-shrink tubing for wire repairs, or OEM-style crimp connectors to ensure a durable and reliable connection.
**Replace the Input/Turbine Speed Sensor:** If the wiring and connector are confirmed to be in good condition, and the sensor itself consistently shows intermittent signal loss, incorrect readings, or fails electrical tests, replacing the input/turbine speed sensor is the most direct solution. Always use an OEM-quality replacement part to ensure compatibility and longevity.
**Address Transmission Fluid Issues (If Applicable):** If the transmission fluid was found to be extremely low or severely degraded during diagnosis, correcting the fluid level and/or performing a transmission fluid and filter service might be necessary. While not a direct fix for the electrical circuit, ensuring optimal transmission fluid condition supports proper transmission operation and can prevent future issues that might indirectly affect sensor performance or cause other transmission problems.